Investors and traders are constantly looking for new ideas that will generate profits. 24/7 Wall St. looks over research calls from all over to find great ideas, from value stocks to dividends to growth stocks. Many research-driven ideas for stocks to buy and to sell come from independent research firms. Some also come from the large sell-side investment banking firms on Wall St.

These are some of this Tuesday’s top analyst upgrades, downgrades and initiations seen from select Wall S. research calls.